Bosch BTM-XB, Operating Manual

Page: 74 / 124

The channel is entered position by position, i.e. for a three-digit channel
number the cursor is first moved to the hundreds position and the cor-
rect digit set with the plus and minus keys. Then the other two positions
are set in the same way.
If the input is interrupted and the digits entered up to now give a non-
existent channel designation together with the other displayed channel
positions, the last valid channel is set after a certain delay (approx. 2
seconds). This need not necessarily be the last operating channel but
may also be another channel which was entered between the last
operating channel and the invalid channel.
The advantage of the two-line display format is that every valid channel
set in the bottom line is immediately transferred to the top line. You
therefore recognise immediately whether a valid or invalid channel has
been set.
Attention! If there is an invalid channel in the display and you press the
menu key, call key or PTT key before the delay of 2 seconds has expired,
the error tone sounds and no transmission takes place. Release the PTT
key, correct the channel and press the PTT key again if you want to.
Channel Scrolling
The menu item corresponds to the “Channel Input” menu, the input is only
possible with the plus and minus keys however. The channels are not edited
position by position but are scrolled continuously from one programmed
channel to the next highest (+) or next lowest (–). This prevents invalid
channels from being input.
Call Number Input
74
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923991 19.10.1999 10:28 Uhr Seite 74